Snow, ice make a wintry comeback in northern Ontario to end April

Wintry weather is making a comeback in parts of the region as a new low-pressure system rounds out April with snow, freezing rain, and ice. Luckily, folks across northern Ontario are no strangers to an April snowfall. Special weather statements are in place, however, to urge residents and travellers to prepare for potential highway slowdowns and power outages due to ice buildup.

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Freezing rain may make roads, bridges, and sidewalks slippery. Slippery conditions are possible in areas that see snow or mixed precipitation, so brace for slower commutes throughout the region.

Icy conditions possible into Monday

Another low-pressure system will affect the region throughout the day Monday. This new storm will have more cold air to work with as it pushes into northern Ontario.

Northern Ontario is seeing all forms of winter precipitation on Monday.

Northwestern Ontario snowfall accumulation April 29 2024
Northwestern Ontario snowfall accumulation April 29 2024

Northwestern Ontario could see a dusting of snow on the ground, with the greatest accumulation staying over the Trans-Canada Highway, north of Thunder Bay and around Lake Nipigon. Although folks driving between Dryden and Thunder Bay, as well as Atikokan and Thunder Bay, may run into some ice pellets along the highway.

Northern Ontario ice pellets and freezing rain April 29 2024
Northern Ontario ice pellets and freezing rain April 29 2024

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Shifting further east, a period of freezing rain is possible between Timmins and Sudbury, as well as areas further northeast through Monday morning. Rising temperatures will force a changeover to rain here by the late afternoon hours.

Northern Ontario rain accumulation totals April 29 2024
Northern Ontario rain accumulation totals April 29 2024

Temperatures in the north and northwest will hover right around the freezing mark, making it difficult to know if precipitation will remain freezing rain or change back over to plain old rain.

Some areas could see up to 5 mm of ice accretion, while others could see snow accumulate between 5-10 cm.

Communities that see prolonged freezing rain or snow will have to contend with slippery roads, bridges, and sidewalks on Monday morning. Allow for extra time heading to work or school on Monday.

Conditions should improve as the storm exits the region Monday night.

Stay with The Weather Network for all the latest on your forecast across northern Ontario.

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